DM74LS299WM datasheet(4/8 Pages) NSC

Part #	DM74LS299WM

Description	8-Input Universal Shift/Storage Register with Common Parallel I/O Pins

Download	8 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

Logo

4 / 8 page

Functional Description

The ’LS299 contains eight edge-triggered D-type flip-flops

and the interstage logic necessary to perform synchronous

shift left shift right parallel load and hold operations The

type of operation is determined by the S0 and S1 as shown

in the Mode Select Table All flip-flop outputs are brought

out through TRI-STATE buffers to separate IO pins that

also serve as data inputs in the parallel load mode Q0 and

Q7 are also brought out on other pins for expansion in serial

shifting of longer words

A LOW signal on MR overrides the Select and CP inputs

and resets the flip-flops All other state changes are initiated

by the rising edge of the clock Inputs can change when the

clock is in either state provided only that the recommended

setup and hold times relative to the rising edge of CP are

observed

A HIGH signal on either OE1orOE2 disables the TRI-

STATE buffers and puts the IO pins in the high impedance

state In this condition the shift hold load and reset opera-

tions can still occur The TRI-STATE buffers are also dis-

abled by HIGH signals on both S0 and S1 in preparation for

a parallel load operation

Mode Select Table

Inputs

Response

MR S1 S0 CP

L

X

Asynchronous Reset Q0 – Q7 e LOW

HH

H

L Parallel Load IOnxQn

HL

H

L Shift Right DS0xQ0 Q0xQ1 etc

HH

L

L Shift Left DS7xQ7 Q7xQ6 etc

H

L

X

Hold

H e HIGH Voltage Level

L e LOW Voltage Level

X e Immaterial

4

Similar Part No. - DM74LS299WM

Manufacturer	Part #	Datasheet	Description
Fairchild Semiconductor	DM74LS299WM	65Kb / 6P	8-Input Universal Shift/Storage Register with

More results

Similar Description - DM74LS299WM

Manufacturer	Part #	Datasheet	Description
Motorola, Inc	MC74F299	172Kb / 5P	8-INPUT UNIVERSAL SHIFT/STORAGE REGISTER WITH COMMON PARALLEL I/O PINS
ON Semiconductor	MC74ACT299	117Kb / 12P	8-Input Universal Shift/ Storage Register with Common Parallel I/O Pins April, 2003 ??Rev. 6
Texas Instruments	CD54-74AC299	281Kb / 13P	[Old version datasheet] 8-INPUT UNIVERSAL SHIFT/STORAGE REGISTER WITH COMMON PARALLEL I/O PINS
Fairchild Semiconductor	74AC299MTCX	495Kb / 14P	8-Input Universal Shift/Storage Register with Common Parallel I/O Pins
National Semiconductor ...	54AC299	221Kb / 10P	8-Input Universal Shift/Storage Register with Common Parallel I/O Pins
ON Semiconductor	MC74AC299	257Kb / 11P	8?묲nput Universal Shift/Storage Register with Common Parallel I/O Pins June, 2006 ??Rev. 8
National Semiconductor ...	54F299DM	194Kb / 10P	Octal Universal Shift/Storage Register with Common Parallel I/O Pins
Fairchild Semiconductor	74F299	70Kb / 6P	Octal Universal Shift/Storage Register with Common Parallel I/O Pins
Intersil Corporation	CD54ACT299	17Kb / 2P	8-Input Universal Shift/Storage Registers with Common Parallel I/O Pins June 1997
Texas Instruments	CD74AC323E	991Kb / 17P	[Old version datasheet] 8-Input Universal Shift Storage Register with Common Parallel

More results

DM74LS299WM Datasheet(PDF) 4 Page - National Semiconductor (TI)

DM74LS299WM Datasheet(HTML) 4 Page - National Semiconductor (TI)

Similar Part No. - DM74LS299WM

Similar Description - DM74LS299WM

Html Pages

1 2 3 4 5 6 7 8

Datasheet Download

Link URL